﻿112 
  CHAS. 
  K. 
  BRAIN. 
  

  

  170. 
  Asterolecanium 
  conspicuum, 
  sp. 
  n. 
  (Plate 
  vii, 
  fig. 
  186 
  ; 
  Plate 
  viii, 
  fig. 
  196). 
  

   Test 
  of 
  adult 
  $ 
  about 
  1*5 
  mm. 
  in 
  diameter, 
  almost 
  circular, 
  with 
  a 
  small, 
  narrowly 
  

  

  rounded 
  posterior 
  extremity. 
  On 
  some 
  species 
  of 
  Acacia 
  the 
  insects 
  cause 
  distinct 
  

   pits 
  in 
  the 
  bark 
  of 
  the 
  twigs 
  (A. 
  robusta 
  ?), 
  but 
  on 
  A. 
  horrida 
  this 
  is 
  apparently 
  not 
  the 
  

   case. 
  Occasionally 
  the 
  bark 
  has 
  been 
  seen 
  to 
  cause 
  a 
  low 
  rounded 
  mound 
  around 
  the 
  

   insect, 
  producing 
  an 
  effect 
  on 
  the 
  twig 
  very 
  similar 
  to 
  that 
  caused 
  by 
  Amorphococcus 
  

   acaciae. 
  

  

  The 
  test 
  is 
  at 
  first 
  flat, 
  yellowish, 
  with 
  short 
  reddish 
  hairs 
  over 
  and 
  around 
  it. 
  Later 
  

   it 
  becomes 
  moderately 
  convex, 
  smooth 
  on 
  top, 
  semi-transparent 
  and 
  greenish 
  yellow, 
  

   with 
  only 
  the 
  marginal 
  fringe 
  persisting. 
  When 
  cleared, 
  the 
  integument 
  is 
  extremely 
  

   delicate 
  and 
  quite 
  hyaline. 
  

  

  The 
  figure-8 
  glands 
  in 
  the 
  marginal 
  series 
  are 
  comparatively 
  small 
  and 
  are 
  accom- 
  

   panied 
  by 
  small 
  circular 
  glands 
  of 
  two 
  sizes. 
  The 
  caudal 
  extremity 
  has 
  low 
  rounded 
  

   tubercles 
  which 
  are 
  scarcely 
  produced, 
  each 
  with 
  one 
  stout 
  spine 
  of 
  moderate 
  length 
  

   and 
  a 
  shorter 
  one 
  on 
  the 
  inside. 
  The 
  anal 
  ring 
  has 
  six 
  spines 
  almost 
  as 
  long 
  as 
  the 
  

   longer 
  ones 
  of 
  the 
  lobes 
  (fig. 
  196). 
  

  

  Remarks. 
  This 
  species 
  is 
  often 
  observed 
  to 
  be 
  heavily 
  infested 
  with 
  a 
  Hymenopterous 
  

   parasite, 
  and 
  in 
  many 
  cases 
  the 
  majority 
  of 
  old 
  tests 
  show 
  the 
  exit 
  holes 
  of 
  such 
  insects. 
  

  

  Habitat 
  : 
  On 
  Acacia 
  spp. 
  (native 
  species 
  only), 
  Pretoria, 
  Marikana, 
  and 
  South- 
  West 
  

   Protectorate. 
  

  

  Collection 
  Nos. 
  : 
  17 
  and 
  303. 
  

  

  171. 
  Asterolocanium 
  bambusae, 
  Boisduval 
  (Plate 
  vii, 
  fig. 
  185 
  ; 
  Plate 
  viii, 
  fig. 
  195). 
  

   Asterolecanium 
  bambusae, 
  Bdv., 
  Insectologie 
  Agricole, 
  1869. 
  

   Asterolecanium 
  bambusae, 
  Sign., 
  Ann. 
  Soc. 
  Ent. 
  Fr. 
  (4) 
  x, 
  p. 
  280, 
  1870. 
  

   Asterolecanium 
  bambusae, 
  Newst., 
  Mon. 
  Brit. 
  Cocc. 
  ii, 
  p. 
  151, 
  1903. 
  

   Asterolecanium, 
  bambusae, 
  Green, 
  Cocc. 
  of 
  Ceylon, 
  iv, 
  p. 
  328, 
  1909. 
  

  

  Mr. 
  Green's 
  description, 
  without 
  reference 
  to 
  figures, 
  is 
  as 
  follows 
  : 
  — 
  

   " 
  Test 
  of 
  adult 
  female 
  oval, 
  convex 
  above, 
  the 
  posterior 
  extremity 
  slightly 
  produced 
  

   into 
  a 
  blunt 
  point 
  where 
  is 
  a 
  small 
  terminal 
  aperture 
  ; 
  smooth, 
  glassy 
  ; 
  colourless, 
  

   or 
  tinged 
  with 
  pale 
  green 
  or 
  yellow 
  ; 
  transparent, 
  revealing 
  the 
  form 
  of 
  the 
  insect 
  and 
  

   eggs 
  beneath. 
  Dried 
  examples 
  assume 
  a 
  more 
  definite 
  ochreous 
  colour, 
  a 
  brown 
  patch 
  

   at 
  anterior 
  extremity 
  representing 
  the 
  dead 
  body 
  of 
  the 
  insect. 
  Marginal 
  fringe 
  

   pinkish, 
  consisting 
  of 
  a 
  double 
  series 
  of 
  glassy 
  filaments 
  springing 
  from 
  the 
  margin 
  in 
  

   pairs, 
  each 
  pair 
  contiguous 
  at 
  the 
  base 
  and 
  for 
  the 
  greater 
  part 
  of 
  the 
  length, 
  but 
  

   diverging 
  laterally 
  at 
  their 
  free 
  extremities 
  which 
  meet 
  the 
  ends 
  of 
  the 
  adjacent 
  

   filaments, 
  thus 
  forming 
  a 
  series 
  of 
  narrow 
  loops 
  irregularly 
  crossed 
  by 
  fine 
  web-like 
  

   threads; 
  the 
  outermost 
  series 
  continuous, 
  except 
  at 
  anal 
  extremity, 
  and 
  longest; 
  

   the 
  second 
  (nymphal) 
  series 
  less 
  than 
  half 
  the 
  length 
  of 
  the 
  outer, 
  and 
  interrupted 
  at 
  

   more 
  or 
  less 
  regular 
  intervals 
  ; 
  an 
  innermost 
  (larval) 
  widely 
  spaced 
  series 
  of 
  crook- 
  

   shaped 
  filaments. 
  Length 
  (without 
  fringe) 
  2 
  to 
  2*5 
  mm. 
  Breadth 
  110 
  to 
  1*60 
  mm. 
  

   Fringe, 
  outer 
  series 
  0*1 
  mm. 
  ; 
  inner 
  series 
  0*04 
  mm. 
  

  

  " 
  Adult 
  female 
  insect 
  at 
  first 
  more 
  or 
  less 
  filling 
  the 
  test. 
  After 
  the 
  deposition 
  of 
  

   the 
  eggs, 
  the 
  abdomen 
  becomes 
  shrunken 
  and 
  the 
  insect 
  occupies 
  the 
  anterior 
  part 
  of 
  

   the 
  test 
  only, 
  the 
  remaining 
  cavity 
  being 
  packed 
  with 
  ova. 
  Colour 
  of 
  insect 
  dull 
  

  

  